Piemontite and Nephrite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
2.90-3.10
  
Fracture
Uneven, Splintery
  
Splintery, Granular, Splintery, Granular, Gemstones (2009)
  
Cleavage
[001] good, [100] distinct
  
Not Available
  
Mohs Hardness
6-6.5
  
6-6.5
  
Chemical Composition
Not Available
  
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
  
Piemontite and Nephrite Chemical Formula
While comparing Piemontite and Nephrite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Piemontite and Nephrite chemical formula.
>- Chemical formula of Nephrite- Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
Piemontite and Nephrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Piemontite and Nephrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Piemontite and Nephrite Optical Properties during the identification of gemstone. Specific gravity of Piemontite is 2.90-3.10 whereas that of Nephrite is 2.90-3.10.